d = {
    'Michael': 95,
    'Bob': 75,
    'Tracy': 85
}

print('d[\'Michael\'] =', d['Michael'])
print('d[\'Bob\']=', d['Bob'])
print('d[\'Tracy\']=', d['Tracy'])
print('d.get(\'Tracy\')=', d.get('Tracy'))
print('d.get(\'Thomas\')=', d.get('Thomas', -1))
